#661D23#661D23

#661D23 is a dark, moderate red. Relative luminance 0.038; OKLCH L 35.0% C 0.104 H 19.8°. Best body text is #FFFFFF at 11.90:1 contrast (WCAG AA passes).

Color values

HEX	#661D23
RGB	rgb(102, 29, 35)
HSL	hsl(355, 56%, 26%)
HSV	hsv(355, 72%, 40%)
CMYK	cmyk(0%, 71.6%, 65.7%, 60%)
CIE-LAB	lab(23.09, 33.04, 14.62)
CIE-LCH	lch(23.09, 36.13, 23.86°)
OKLab	oklab(34.98% 0.0981 0.0353)
OKLCH	oklch(34.98% 0.104 19.8)
XYZ	xyz(6.2228, 3.8257, 2.0005)
Luminance	0.0382 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#661D23 #1D6660

analogous

#661D47 #661D23 #663B1D

triadic

#661D23 #23661D #1D2366

tetradic

#661D23 #47661D #1D6660 #3B1D66

square

#661D23 #47661D #1D6660 #3B1D66

split-complementary

#661D23 #1D663B #1D4766

monochromatic

#180708 #360F13 #661D23 #962B33 #C53844

Accessibility & contrast

On white

11.90

#661D23 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#661D23 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #661D23

11.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##661D23	#FFFFFF	#000000	##FFFFFF
##661D23	1.00	11.90	1.77	11.90
#FFFFFF	11.90	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#302D23

Deuteranopia (green-blind)

#433D21

Tritanopia (blue-blind)

#700B20

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #661d23;
/* rgb */ color: rgb(102, 29, 35);
/* oklch */ color: oklch(35.0% 0.104 19.8);

Tailwind

colors: {
  custom: {
    50: '#975e5d',
    500: '#661d23',
    950: '#000000',
  },
}

SCSS

$custom: #661d23;
$custom-light: #975e5d;
$custom-dark: #000000;

JSON

{
  "hex": "#661d23",
  "rgb": {
    "r": 102,
    "g": 29,
    "b": 35
  },
  "hsl": {
    "h": 355.068,
    "s": 55.725,
    "l": 25.686
  },
  "oklch": {
    "l": 0.34976,
    "c": 0.10428,
    "h": 19.8
  },
  "luminance": 0.03825
}

Semantic roles & 50–950 ramp

primary

#661D23

secondary

#449B94

accent

#DFD349

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0E0504

muted

#7E7979

Preview Lab

Preview with #661D23

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →